Tsunekawa, Osaka

Koichi Tsunekawa, Osaka JP

Patent application number

Description

Published

20090323515

OFDM TRANSMITTTER AND OFDM RECEIVER - In an environment with large transmission delays, use of an OFDM transmitter which includes: a pilot/data allocator for allocating pilot/data symbols on OFDM symbols and an OFDM receiver which includes: an antenna for receiving the OFDM signals sent out from the antenna of this OFDM transmitter; a ratio unit for frequency transforming the OFDM signals received as RF signals to baseband signals; a frequency offset estimate for estimating an offset value; and a frequency offset corrector for performing frequency compensation by the amount of the frequency offset, improves data transmission efficiency while reducing interference of data between sub-carriers to prevent degradation of reception characteristics by performing appropriate frequency offset correction.

12-31-2009

20110116438

COMMUNICATION SYSTEM, RECEPTION DEVICE, AND COMMUNICATION METHOD - A communication system includes a reception device and at least one transmission device. The transmission device includes: a signal transmission unit which transmits at least one unicast signals and a multicast signal to the reception device. The reception device includes: a plurality of signal reception units which receive at least one the unicast signals and the multicast signal from the transmission device; a first control unit which receives the unicast signals from the transmission device using all of the plurality of signal reception units when only the unicast signals are received; and a second control unit which receives the unicast signals from the transmission device using some of the plurality of signal reception units, and simultaneously receives the multicast signal from the transmission device using another signal reception unit of the plurality of signal reception units, when the unicast signals and the multicast signal are received.

05-19-2011

20110217961

COMMUNICATION SYSTEM, BASE STATION DEVICE, MOBILE STATION DEVICE, AND COMMUNICATION METHOD - A communication system includes a unicast base station device, a multicast base station device, and a mobile station device. Before receiving information concerning a multicast service, the mobile station device transmits, to a position register server, identification information identifying a reception area in which a multicast service is provided. When receiving incoming call information indicating that information concerning a unicast service has been received, the multicast base station device transmits the incoming call information to the mobile station device. The mobile station device receives the incoming call information even while receiving the information concerning the multicast service.

09-08-2011

20110249607

WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION APPARATUS, WIRELESS TERMINAL, AND SYMBOL ARRANGEMENT APPARATUS - In MBMS system, a plurality of MBMS areas are geographically arranged to provide multimedia broadcast/multicast service (MBMS) to wireless terminals located in the plurality of MBMS areas, the plurality of MBMS areas having cell pattern including single frequency network (SFN) using predetermined frequency band. The plurality of MBMS areas are arranged using different frequency bands to simultaneously provide different MBMSs to wireless terminal located at a given point.

10-13-2011

20120077445

WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, BASE STATION APPARATUS, AND TERMINAL STATION APPARATUS - A wireless communication system includes a terminal station apparatus and a base station apparatus which transmits data to the terminal station apparatus using a plurality of component carriers that are communication frequency bands in which wireless communication is performed. The base station apparatus includes: a frequency band determination unit which determines component carriers in which data is transmitted and notifies the terminal station apparatus of the determined component carriers on the basis of radio quality of each of the plurality of component carriers when transmission of the data to the terminal station apparatus is initiated or when the component carriers to be used for transmission of the data to the terminal station apparatus are changed.

03-29-2012

20120083271

WIRELESS COMMUNICATION DEVICE - A wireless communication device includes: a storing unit configured to store recording medium identification information that identifies a recording medium that is detachable; a network communication unit that is connectable to a communication network; a reading unit configured to read the recording medium identification information stored in the recording medium; a recording medium identification information registering unit configured to write, to the storing unit, the recording medium identification information read by the recording unit; a wireless communication unit configured to wirelessly communicate with a communication terminal device attached with the recording medium, and to receive a recording medium identification information from the communication terminal device; and a communication control unit configured to at least control the network communication unit to transmit to the communication network, a signal from the communication terminal device, or to control the wireless communication unit to transmit to the communication terminal device, a signal from the communication network which is addressed to the communication terminal device, if the communication control unit determines that the recording medium identification information read from the storing unit is identical to the recording medium identification information received by the wireless communication unit.

04-05-2012

Patent applications by Koichi Tsunekawa, Osaka JP

Kouichi Tsunekawa, Osaka JP

Patent application number

Description

Published

20110003551

TRANSMITTER, RECEIVER, TRANSMISSION METHOD, AND RECEPTION METHOD - A transmitter which communicates with a receiver. The transmitter includes a null subcarrier allocation unit which allocates a null subcarrier based on a priority and a signal. The priority is for allocating a null subcarrier to each subcarrier. The priority is a ranking predetermined with the receiver. The signal is allocated to each subcarrier. The transmitter includes a transmission unit which transmits the signal using the subcarrier allocated by the null subcarrier allocation unit as the null subcarrier to the receiver.

01-06-2011

20110038398

COMMUNICATION SYSTEM, TRANSMITTER, RECEIVER AND COMMUNICATION METHOD - A transmitter communicating with a receiver, the transmitter including: a first hopping sequence generation unit which generates a hopping sequence whose hopping subcarrier interval is less than or equal to a predetermined threshold value based on a cell ID; a first reference signal pattern generation unit which generates a reference signal pattern based on a reference signal basic pattern including a predetermined known signal sequence and the hopping sequence generated by the first hopping sequence generation unit; an arrangement unit which arranges the reference signal and a data symbol in a predetermined position within the symbol, based on the reference signal pattern generated by the first reference signal pattern generation unit; and a signal transmission unit which transmits the symbol having the reference signal and the data symbol arranged by the arrangement unit to the receiver.

02-17-2011

Makoto Tsunekawa, Osaka JP

Patent application number

Description

Published

20080244901

MANUFACTURING METHOD OF TAPE CARRIER FOR TAB - Positioning marks are formed on both sides of each printing block on a tape carrier for TAB. A long-sized circuit board is transported by a roll-to-roll system in screen printing. When an optical sensor detects a positioning mark, transportation of the long-sized circuit board is stopped. Thereafter, the screen printing of a solder resist is performed to the printing block of the long-sized circuit board by a screen printing device.

10-09-2008

20090114426

Wired circuit board - A wired circuit board includes a conductive pattern, and an insulating layer covering the conductive pattern and having a transmittance of not more than 30% with respect to a wavelength in a range of 600 to 680 nm.

05-07-2009

20120251733

ELECTROLESS PLATING APPARATUS, METHOD OF ELECTROLESS PLATING, AND MANUFACTURING METHOD OF PRINTED CIRCUIT BOARD - An electroless plating solution is contained in a plating tank of an electroless plating apparatus. A reference electrode and a counter electrode are immersed in the electroless plating solution. A conductive member is provided to be electrically in contact with a conductive layer formed of a long-sized substrate. The conductive member, the reference electrode, and the counter electrode are connected to a potentiostat. The potentiostat controls an electric current that flows between the conductive layer formed of the long-sized substrate and the counter electrode such that a potential of the conductive layer formed of the long-sized substrate (working electrode) is at a constant level with respect to a potential of the reference electrode.

10-04-2012

20120295013

ELECTROLESS PLATING APPARATUS, METHOD OF ELECTROLESS PLATING, AND MANUFACTURING METHOD OF PRINTED CIRCUIT BOARD - An electroless plating solution is accommodated in a plating tank of an electroless plating apparatus. A reference electrode and a counter electrode are immersed in the electroless plating solution. A conductive member is provided to be electrically in contact with a conductive portion of a long-sized substrate. The conductive member, the reference electrode, and the counter electrode are connected to a potentiostat. A main control device controls the potential of the conductive portion of the long-sized substrate by a potentiostat such that the potential of the conductive portion of the long-sized substrate with respect to a potential of the reference electrode is equal to a potential of the independent portion of the long-sized substrate with respect to the potential of the reference electrode.

11-22-2012

Patent applications by Makoto Tsunekawa, Osaka JP

Norikazu Tsunekawa, Osaka JP

Patent application number

Description

Published

20100103192

Image Processing Device, Image Processing method And Electronic Apparatus - A clipping processing portion is provided with: a subject detection portion that detects a main subject and a sub-subject from an input image; a degree-of-relationship calculation portion that calculates the degree of relationship between the main subject and the sub-subject; a clip region setting portion that sets a clip region based on the positions of the main subject and the sub-subject in the input image and the degree of relationship; a clipping portion that clips the clip region from the input image. The clip region setting portion sets the clip region so as to include the main subject and the sub-subject having the high degree of relationship thereof.

04-29-2010

20100141823

Image Processing Apparatus And Electronic Appliance - An output-image processing portion outputs an output image for display that contains a super-resolution-effect image indicating super-resolution effect—effect obtained when super-resolution processing is applied to an input image. Thus, having checked the output image for display, the user can recognize the degree of super-resolution effect. Accordingly, it is possible to easily judge whether or not the super-resolution processing is required.